( Reaffirmed 2004 ) 1s : 9891 ( Part 1) - 1981 Indian Standard SPECIFICATION FOR EDGE CONNECTORS FOR PRINTED WIRING BOARD AND INSULATED BOARD HAVING A CONTACT PITCH OF 2.54 mm PART I TEST SCHEDULE AND REQUIREMENTS Sectional Connectors for Electronic Equipment Committee, LTDC 16 Chairman BRIQ N. DAYAL Mem hers Ministry Representing of Defence ( DGI ) LT COL GURDEV SINQII (Alternate to Brig N. Dayal ) DR K. B. AWARWAL Department of Electronics, New Delhi SHIZI R. K. CHAKRAVARTI ( Alternate ) SHRI BAKUL HARISHANKAR Allied Electronics Corporation, Bombay SHRI S. B. KARNI~ ( Alternate ) Electronic Component Industries Association, SHRI R. P. BALSARA New Delhi SIIRI BAIWL HAWSHANKAR ( Alternate ) Smtr D. K. BANSAL Poly-Qua1 Engineeratics ( India ), New Delhi SMT R. D. KTJNAR ( Alternate ) SHRI M. R. GOCHA M C Gogia, Distt Thane SHRI K. B. LALI. Posts and Telegraphs, New Delhi SHRI Y. K. PANDE ( Alternate) SHRI I. C. MATHUR Directorate of Technical Development and Production ( Air ), Ministry of Defence SHRI B. A. SHASTRY ( Alternate) DR K. M. MATHUR Hindustan Electrotechnology Pvt Ltd, Bombay SHRI A. K. MIST&A Directorate General of Civil Aviation, New Delhi SHRI S. C. DUGQAL ( Alternate ) SHRI R. PARTHASAR~HY Hindustan Aeronautics Ltd, Hyderabad SHRI B. A. KHAN ( Alternate) LT COL PAUL VERGBESE Amphetronic Ltd, Pune SHRI T. K. VENUGOPAL ( Alternate ) ( Continued on page 2 ) @ Copyright 1982 INDIAN STANDARDS INSTITUTION This publication is protected under the Indian Copyright Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Act. IS I 9891 ( Part I ) - 1981 ( Continuedfrom page 1 ) Members SHRI Representing National Delhi Physical Laboratory Industries ( CSIR ), New RAM SWAEUP SHRI 0. N. KHANNA ( Alkrnate) SHRI P. V. RAO SHRI VIRESALINQAM ( Alternate ) SHRI C. S. SETEI SHRI R. SOMASEKHARA SHR~ S. V. KABADE ( Alternate ) SHRI A. SUNDARA BABU SHRI P. K. SHUKLA ( Alternate ) SHRI S. VEDAN'PHAM SHRI RAW KUMAR ( Alternate ) SKRI R. C. JAIN, Head ( Electronics ) Indian Telephone Gilard Electronics, Bharat Electronics Ministry Railway Director Ltd, Bangalore Kota Ltd, Bangalore ( R & D ) of Railways of Defence Board, General, Ministry IS1 ( Ex-oficio Member ) Secretary SRRI B. K. SHARMA Assistant Director ( Electronics), IS1 2 IS : 9891 ( Part I ) - 1981 Indian Standard SPECIFICATION FOR EDGE CONNECTORS FOR PRINTED WIRING BOARD AND INSULATED BOARD HAVING A CONTACT PITCH OF 2.54 mm PART I TEST SCHEDULE AND REQUIREMENTS 0. 0.1 This Indian FOREWORD Standard was adopted by the Indian Standards Institution on 21 September 1981, after the draft finalized by the Connectors for Electronic Equipment Sectional Committee had been approved by the Electronics and Telecommunication Division Council. 0.2 This standard ( Part I ) is one of the Indian Standards on low frequency connectors below 3 MHz used in electronic equipment and shall be used in conjunction with IS : 9647-1980 Specification .for general requirements and methods of tests for low frequency connectors below 3 MHz including dc. Subsequent parts of this standard will cover detail specifications for specific types of connectors. 0.3 While preparing this standard, assistance has been derived from JSS 50805 Detail Specification for Connectors, Electrical, Printed Wiring Board and Insulated Board ( Edge Connectors ), issued by Directorate of Standardization, Ministry of Defence, India. 0.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance The number of significant places retained in the with IS : 2-1960". rounded off value should be the same as that of the specified value in this standard. 1. SCOPE 1.1 This standard specifies the test schedule to edge connectors for printed wiring board a contact pitch of 2.54 mm. *Rules for rounding off and requirements applicable and insulated board having ). nurnrrical values ( wised 3 IS : 9891 ( Part I) - 1981 2. TERMINOLOGY 2.0 For the purpose of this standard, terms and definitions IS : 1885 ( Part XL )-1974" and IS : 9647-1980t shall apply. AND WORKMANSHIP used and workmanship shall be in accordance given in 3. MATERIALS 3.1 The materials of IS : 9647-1980t. 4. TYPE 4.1 Boards - with 4 DESIGNATION The boards are identified by code letters Code Letter as given below: Board Printed Insulation 4.2 Contacts 4.2.1 wiring board W I board and Terminals mounted A printed wiring board or insulated board on which plugs shall have a thickness between 1.40 mm and 1.88 mm. are 4.2.2 A printed wiring board or insulated board on which plugs are mounted shall have a thickness between 1.60 mm aud l-98 mm. 4.2.3 Terminals - The letters as given below: types of termination are identified by code Tj$e of Termination Solder Termination Wire wrap termination Double wire wrap termination 4.3 A connZctor according to this standard Code Letter A B c is designated by: 9 Reference ii) The letter iii) number to the Indian Standard, IS represents Indian Standard, A number denotes the type of connector, iv) Numbers denote the number of contacts or pins, v) The letter W or I or WI denotes the use of connectors cular board ( see 4.1 ), vi) The letters A, B and ( see 4.2.3 ), and C represent in partiused the type of termination vii) T represents *Electrotechnical fspecification Conpectors below the thickness of the finish in micron. vocabulary : Part XL Connectors. for general requirements and methods 3 MHz including dc. of tests for low frequency 4 IS:9891 (Part I)-1981 4.4 The example: type designation xxxx where represents the reference number of Indian Standard (IS), YY denotes the number allotted to the type of connector, ZZ denotes the number of contacts, W/I represents the use of printed wiring board/insulated board or both, A/B/C represents the type of termination, and T denotes the thickness of the finish in micron. 5. MARKING 5.1 The shall be given ZZ - in accordance W/I-A/B/C - T with 4.3. For IS - YY - XXXX connectors shall be marked in accordance with 6 of IS : 9647- 1980*. 6. CLIMATIC 6.1 The CATEGORY climatic category of IS : 9647-1980*. shall generally of a particular be chosen connector in accordance with 3 in 6.2 The climatic category the relevant specification. 7. ELECTRICAL 7.1 The rated specification. shall be specified RATINGS voltage and rated current shall be specified in the relevant 8. TESTS 8.1 General - The they shall be carried test schedule specifies the tests, the order out and th< requirements to be met. - in which shall 8.2 Conditions apply. 8.3 Classification shall apply. of Tests The provisions - of 8 of IS : 9647-1980" of Tests The provisions of 7 of IS : 9647-1980* 8.4 Test Schedule 8.4.1 Ty@ Tests - tests and the number *Specification connectors below The test of samples schedule for type tests, the sequence shall be as specified in Table 1. and methods of test for low frequency of for general requirements 3 MHz~including dc. 5 IS : 9891(Part I ) - 1981 TABLE TEST 1 SCHEDULE OF TYPE TEST REQUIREMENT CONDITION OF TEST 1, All Samples a) Visual c) Insertion force d) Contact e) Voltage f) Insulation b) Dimensions ( 22 Samples examination and mass & withdrawal resistance proof resistance (6 Samples of ) ) 9 10 14.1 12.1 12.5 12.4 3 times voltage of rated - 10 m Ohms ( Max ) 5 000 M Ohms 100 V ( dc ) at 2. First Group a) Soldering 13.15 termi13.16 13.16.1 13.16.2 14.10 14.11 resistance 12.1 14.13 10 to 2 000 Hz, 0.75 mm or 500 m/se and duration 10 h 500 m/s2 40 percent of initial test voltage Force 40 N Three bends 170 ml.98 4 000 Bumps, & duration 40 g 6 ms 15 m Ohms ( MUX ) b) Robustness nations i) Tensile test ii) Bending test tag terminations on ) 4 4 e) Acceleration Bump i) Contact Vibration ( Steady i) Visual examination ii) Contact resistance 9 12.1 14.12 12.1 16.4 12.5 12.4 9 15 m Ohms 15 m Ohms (MUX) (Max) f 1 Shock i) Contact resistance of temg) Rapid change perature i) Voltage proof 100 m Ohms or 1000 m Ohms resisii) Insulation tance iii) Visual examination *Specification connectors below for general requirements 3 MHz including dc. and methods of tests for low frequency ( Conlinued ) 6 B:98Qi (Partt)-1981 TABLE TEST 1 SCHEDULE CLAUSE REF OB IS : 96471980* 162.1 examination 9 16.2.2 9 16.2.3 examination proof 9 16.2.4 12.5 16.2.5 12.5 12.4 12.1 9 ) 16.3 12.5 Duration 21 days Temp -40% OF TYPE TEST Contd REQUIREMENT COXDITION OF TEET h) Dry heat i) Visual j) Damp heat, accelerated ( first cycle ) i) Visual k) Cold i) Visual i) Voltage m) Low air pressure examination Temp + 125°C - 4.4 kPa 40 percent of initial test voltage n) Damp heat, accelerated ( remaining cycle) i) Voltage proof 40 percent of initial test voltage 1 000 m Ohms (Min) 15 m Ohms ( MUX) ii) Insulation resistance iii) Contact resistance iv) Visual examination 3. Second Group ( 4 Samples a) Damp heat ( long term exposure ) i) Voltage proof - ii) Insulation resistance iii) Contact resistance iv) Visual examination 4. Third Group (4 Samples endurance ) a) Mechanical test 12.4 12.1 9 17 40 percent of the initial test voltage - 400 operation and 6 000 operation reference for contacts 40 percent of initial test voltage and methods of tests 100or 1 OOOm Ohms ( Min) 15 m Ohms ( Max ) - - i) Voltage ii) Insulation tance proof resis- 12.5 12.4 100 m Ohms (Min ) for low frequency ( Confinued) *Specification for general requirements connectors below 3 MHz including dc. 7 h:g&Ii( Part i)TABLE 198i Y 1 SCHEDULE OF TYPE TEST Cod REQUIREMENT TEST CLAUSE REF OB IS : 964719ao* resistance and withforce examination endurance proof 12.1 14.1 9 18 12.5 12.4 12.1 9 ) 16.6 16.7 9 14.1 12.5 12.4 CONDITIONOF TEST iii) Contact iv) Insertion drawal v) Visual b) Electrical test i) Voltage - 15 m Ohms ( Max) - 1 000 h at 70°C 40 percent of initial test voltage 100 m Ohms 15 m Ohms ( Min ) ( Max ) ii) Insulation resistance iii) Contact resistance iv) Visual examination 5. 6. Fourth Fifth Group Group ( 2 Samples ( 2 Samples) a) Mould growth a) Salt mist i) Visual examination ii) Insertion and withdrawal force iii) Voltage proof iv) Insulation tance resis- 40 percent of the initial test voltage 100 m Ohms or 1000 m Ohms ( Min ) 15 m Ohms (MUX) v) Cdntact resistance 7. Sixth Group ( 2 Samples ) a) Contact retention ( insert ) i) Visual examination NOTE *Specification connectors below Two samples 12.1 14 4 9 are as spares. and methods of tests - for general requirements 3 MHz including dc. for low frequency 8.4.2 Routine Tests - The following tests shall be carried out in the order stated: a) Visual examination ( see 9 of IS : 9647-1980* ), b) Voltage proof ( duration 5 seconds ) ( see 12.5 of IS : 964719so* ). *Specification connectors below for general requirements 3 MHz including dc. and methods of tests for low frequency 8 IS : 9891 ( Part t ) - 1981 8.4.3 Acceptance Tests - Two groups of samples ( Group A and Group B ) shall be selected ( see Appendix B of IS : 2612-1965* ) preferably at random from the lot that has passed routine tests stated in 8.4.2 above. Each group of connectors shall be subjected to the tests in the order given in Table 2. TABLE TEST 2 SCHEDULE OF ACCEPTANCE ( PERCENT DEBECTIVE ) (3) TESTS INSPECTION LEVEL? D/NDS CLAUSE REF. OF IS : 9647. 1980* (2) AQL (1) GROUP Contact Insulation GROUP Sub-group Dimensions Sub-group 2 Mechanical Electrical endurance endurance test test `A' force (4) (5) Insertion and withdrawal resistance resistance cB' I and mass 14.1 12.1 ,122 I II ND 10 4 s-3 ND 17 18 4 s-3 ND Sub-group 3 Soldering Robustness Bump Climatic sequence which of termi,nations 13.14 13.15 14.11 16.2 have been subjected to destructive tests shall not be 4 s-3 D NOTE - Samples returned to the lot. *Specification connectors below tsampling plans ( renderprepuralion ) . $.D-destructive and ND - 3 MHz including for requirements and methods of tests for low frequency dc. and procedures for inspection by attributes for electronic items non-destructive. general *Recommendation components. for type approval and Sampling procedures for electronic 9 lhjbtiiiri ON CONNECTORS S'jrAhIYbAhDS FOR ELECTRONIC EQUIPMENT IS: 1885 (Part 29261964 3720-1966 XL )-I974 Dimensions Dimensions Electrotechnical of connectors of polarized vocabulary : Part XL Connectors aids for radio batteries plugs for hearing brlow 3 MHz below 3826 ( Part I )-1966 Connectors ments and tests 3826 ( Part II )-1970 connectors 5054-1980 9647-1980 for frequencies : Part I General require: Part II Battery Connectors for frequencies for electronic equipment 3 MHz General requirements and methods of tests above 3 MHz (first revision ) General requirements including dc and methods for radio frequency connectors 3 MHz of tests of connectors below 9891 ( Part I )-1981 Edge connectors for printed wiring board and insulated board having a contact pitch of 2'54 mm : Part I Test schedule and requirements 9891 ( Part II )-1981 Edge connectors for printed wiring board and insulated board having a contact pitch of 2.54 mm : Part II Plug types 9891 IS-01-II/ 25/33-W-A-0.75 9891 ( Part III )-I981 Edge connectors for printed wiring board and insulated board having a contact pitch of 2.54 mm : Part III Plug types 9891 IS-02-11/25/33I-A-0.75 9891 ( Part IV )-1981 Edge connectors for printed wiring board and insulated board having a contact pitch of 2.54 mm : Part IV Socket types 9891 IS-03-11/25/ 33-W/I-A/B-0.75